Z8F042AHH020EG Zilog, Z8F042AHH020EG Datasheet - Page 185

• Manufacturer Part Number: Z8F042AHH020EG
• Description: IC ENCORE XP MCU FLASH 4K 20SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F042AHH020EG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, LVD, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 17
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 7x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4156; Z8F042AHH020EG

PS022517-0508
Caution:
Figure 39. Interfacing the On-Chip Debugger’s DBG Pin with an RS-232 Interface (2)
Figure 38. Interfacing the On-Chip Debugger’s DBG Pin with an RS-232 Interface (1)
transmission is half-duplex, in that transmit and receive cannot occur simultaneously. The
serial data on the
RS-232. This pin can interface the Z8 Encore! XP F0822 Series products to the serial port
of a host PC using minimal external hardware.Two different methods for connecting the
DBG
RS-232 TX
RS-232 RX
pin to an RS-232 interface are displayed in
RS-232 TX
RS-232 RX
For operation of the OCD, all power pins (V
plied with power, and all ground pins (V
grounded. The
V
DD
through an external pull-up resistor to insure proper operation.
DBG
pin is sent using the standard asynchronous data format defined in
DBG
Transceiver
RS-232
Transceiver
pin is open-drain and must always be connected to
RS-232
Open-Drain
Buffer
Diode
Figure 38
SS
V
DD
and AV
DD
V
DD
Z8 Encore! XP
10 K
and AV
and
10K Ohm
SS
Ω
Figure
) must be properly
DBG Pin
Product Specification
DD
DBG Pin
) must be sup-
39.
®
On-Chip Debugger
F0822 Series
172